Nozzle used for sandblasting purposes



'Oct. 19, 1943. c. D. SPENLE 2,332,407

NOZZLE USED FOR SAND BLASTING PURPOSES 2 Sheets-Sheet 1 Filed Jan. 6,1942 m m m INvENToR cm quas Dnvvas SPEHLE,

s QJWS RN Lk-I HTTO E1 Oct. 19, 1943. c. D. sPENLE NOZZLE USED FOR, SANDBLASTING PURPOSES Filed Jan. 6, 1942 2 Sheet s-Sheet 2 Ian We M r L Liii... m

- INVENTOR'. v CHanLes Dawes SPENLE 8U u/nlc fifi TTORH -I Patented Oct.19, 1943 V UNITED? .sTA- TEs PATEN V'NDZZLE USED'IFORISANDBLA'STING I I"r RPo-sEs Charles Davies Spenle N orthenden, England ApplicationJanuary 6, 1942;sjenaiN6. 125;722 I In Great Britain January 8, 1941This invention relates to improvements in and'..

connected with discharge nozzles used with sand blasting apparatus for,sand blasting purposes, such as'the sand-blasting of castings, and oiherarticles or structures, for cleaning and scarifying purposes, or forsand blastingetched or other surfaces. as is known.

The discharge nozzles attached to'the flexible ponents inter-connectingor contacting or adapt able or. adjustable one to another can beintroduced and secured in the nozzle or chuck when serious wear of suchelements has taken place.

Means are used to clamp and where necessary permit adjustment of therenewable. or introducible and combining lining elements.

Accordingly under this invention use is made of a nozzle body or chuckof appropriate construction for attaching to the pipe line and forhandling and fashioned to receive and support the renewable orinter-changeable 0r re-conditioned liner elements of cast-iron, steel,tungstencarbide, or other metal or alloy; which elements are fashionedto combine or produce the renewable or interchangeable liner structureto he secured in the chuck or nozzle body. The invention ishereafterfifully explained and described, reference being made to theaccompanying drawings which show several constructions. In the saiddrawings:

Fig. 1 shows an end elevation of a nozzle or chuck at the inlet end andwith the combining renewable hard wearing element's situated at theinlet end.

Fig. 2 is a separate View of one of the combin-- ing renewable elementsof which'six are seen in position at Fig. 1.

Fig.3 shows an end view of Fig. 2. Fig. 4 is a longitudinal'section onthe line 4 -4 in Fig. 1. e i Fig. 5 shows a View of the structurelooking upwards from the bottom of Fig. 4. A

Fig. 6 isa separate viewcf one ofthe renew-i able and interchangeable.hard wearing liner ele meritsv (cap able Fig.7 is a plan at'the inletend and shows a slot typei of nozzle with renewable and changeablecombining hard wearing liner elements. Fig, 8 shows'a section onthe line8-0 of Fig. '7.

Fig. 9 is a side elevation of Fig.7.

outlet.

*Fig. llshbws an assembly of wear resistingre faceable and renewableliner elementsof modified cross-section. V W

According to this invention and with reference to Figs. 1 to 6 there isused a nozzlebody-or chuck which is of appropriateldesign' for't'heintended sand blasting use, and; in the drawings, a' circular casing. orholderu is shown adapted to be fixed to a fitting on the pipe as forexample by attach-' ment of awelded-on flange a indicated atFig. 4.'Theoutlet or delivery end of-the nozzle is shownfitted at the deliverywith hard wearing liner elements .of abrasion resisting metal b. Thesemay be varied as to shape butare shown as of octagonal shap incross-section and six are indicated abutting oneto another within thebore of; the nozzle. ,When assembled'infpositionin the nozzle body theycan be'held in place b-y'screws c. To further sustain .;the elements btheir outer ends may abut against'a. flange 0 shown in dotted lines,Fig. 4.; Such elements!) provide a liner with hexagonal passageway ahdwhenjwear has taken place same" can be turned about to present a freshwearing surface to resto're the contourfof the forward passage wavf of,the nozzle'; It is obviousthat as wearoccurs of liner elements'fbfsamecan be taken outand re-shfaped,then're ccmbined and set-up by the screws0 to restore" was approximation of the originalpassa'geway, so that thewear resisting elementscan be gradually used up as fares possible. Theoperative 'facesof liner elementsb can be roun'ded o'r struck to acurve'as indicated by dotted lines at b so as to present an approximatecylindrical here if required; As regards the'rea'r 'orinlet end orphenozzle, the renewable liner elements therefor consist; in"

the illustration, of six tapered plates (2 with in clined longitudinaledges d as clearly shown by Figs. 2 and 3. These are assembled orcombined as shown by Figs. 1 and 4 andproduce a tapered hexagonalpassage way or inlet. The inner ends abut on the liner elements bandascrewed ring a is shown to retain in place theouter ends or theliner element (1. Screws d act on the rear of the six tapered plates (1.It is seen that the'i'nner ends o f the; tapered plates d wherethey reston 'ofbeing re-c'onditioned)' seen'in Fig. 10 shows an endvie'w lookingtowards the i 2 t the elements 12 produce a mouth coinciding with thatproduced by the assembly of liner elements b when the latter are of theshape shown in full lines in Fig. 5. It will also be apparent that the sshape and disposition of the liner elements (1 produce a taperinghexagonal inlet to the nozzle. The inclin ed liner elements d do notsuffer to the same e I t'ittjas'iint felemeiits ib, but" w n seriouswear "of "a liner elementdoccurasame can be re-conditioned and replaced,or merely l0 replaced.

In the modified structure shown by fig s zj to 10 the nozzle body A isrectangular in shape andthe outlet or delivery section consists of tworec;

tangular plates e, said plates 6 bei'r'i'gof warre Wr,

such screws preferably enga'ge'with' the" osition,

up p ces etic snel le and fi lilig lww amr xemnk F at t. liner elementse, e constitutes th"f orwar'd for outlet part ofthe nozzle which itwillbe' seefi'is l.:- 1 i. an 9 J-V'v 1'' .mleiex dsq hs 33%42. AL9Q P 95%? n lar. a esiea li e lemfii i .9? W a fi s-m t -9 WSTYILYHPCII ar 9in. anqdl c a alar Pe n -e n ish i s g 'ri' equs rbra s e s .r ar. t isi Pet l] held in Plat 1 y;

ce aaid mattwr'ab a e as liedi a q ii n 1. This ra g gctli i Jill as mit by th tieitaa i ii e-fi aria?- By ct at on. .QL ha cre s 9? 33K an emt tess r, heate e m i jet its w d h r ma ne i ma te acqfte eee i qi BtIE iP E-ZZ waremsael i ei e ql the w nds 11$; thegt psredfinl .t aan f 91 nzn riala as it. BL??? U,9 Pl ',7 .b, r w a re stin meta lb eseatethelte P at lx'li a a te filliiateh la P re s w ich. es. en e,- l e'iaq.ananas l nes 3. 7 l rl pyw ft ;eehswe a eeiat e wlitirszueeietea tataric aai aa meaa arafean mi se; a ae w th s 1 .i an 1 iaii t amtl iefbifit ie fi 'ac saia sa-iia e ner ,e

. r efieetse t eaeaea a w e eme ts .n tit-swan esliew ar na ae a; a Ye cm ranged produce oct' passalie f i alllei uq ei ieaw tb r atc t lnersamilies? l l e atmea pe aseaa W to what tanne -L s?! s te-r Thespaces around the in in sinnrarmtinner;

the rear compartment of the nozzle, and'fr e's'hlydisposed orphangediaces for the interchangeabler fac 75 able or adjustable hardmetal liner elements and bounded by the nozzle walls may be filled-up byrunning in lead to preclude easy passage of air due to the faces of therenewable re-faceable or interchan'geable liner elements not beingproperly ground.

I declare that what I claim is:

luAfsafidf-blals'ti'ng n zzle pdgjipr smg a body portion with "rearwardand-"forward insertable liner elements of wear resisting metal or alloy,

th'-"rearward elements adapted to combine in l manner to permit samechanged 'asr'e'ciuis'ite on wear taking place, means to fix and adjustsaid to be re-conditioned or N V fl v removable elements, and forwardwear resisting liner elements capable of beingrernoved andre-ground orre-disposed and combinedto pro'videiresh wearing surfaces, and

means o'fiir 'and adjust said foward wear resistihge leriients in thebody portion of the nozzle,

a1 ,as described and shown with reference to Fight to o 2. apzegmzae-eoi tnsrnt a body po with; rearward and forward rnsertable 7 1me ements, "or ting jmet'al" or array;

proiiuc'e "a tapered inltf mta'risito adjust and; insert'able felemen'tsid. e eme t a d fpr rar pro'd 1 'slot lilsefoutlet means" to hold andalie iigout a ic iqw W sent fre'slffad origi'nalf inner contour as?described and shown ce tlo' Fig s. 7m n."

oijw jrd lns eftabl'e-liner elements or met ll -t 1. 1 "ha s; whithis ain le 'ent'ityfsa'id'body portion a tugl'inalabutting*iin'er elements ofwear resistin mtalbr'alloy, whichfel''ri'ieiit's provide a completeinterior-ts thenozzle to roduce a bunt-up' taperi'ng""rea1fnozzle"compartment of 'abuttin'g" ele= me'r'i'ts'and aforward nozzlecompartment of abutting 'el'emntsj'the"aforesaid rearward diner elementsin the rear" compartment"adaptedtcbe' talrenFout'and re' g'rourrd orrenewed and "re-a'ssembled', screwdevices to'fizi sameythe linerelv'mentsirrtheforward compartmentbeing adapted to be reversed or inverted,ground or renewedas may be requisite, screws to fix said linergeleie-ground or fresh' liner surfaces-can be brought into use to producearestored or new interior'to ments' in the 'forward compartment, allwhereby A J liner elements of -the iorward compartment, all softhat areconstituted or fresh cross secti'onal'areaof the liner elementsislobtai ned forth rel-wardenspartment approximating tothe'orig'i'nalboie or outlet" of the' i1oz'zle','in"'manner' describedherein.

5. A sand blasting nozzle comprisingfan en'- vel'opir'igholdifl'combining' machined liner elements fitted ,in the f rear of Isaid holder and capablej'ot fbei n'g re esse'diand replaceable orexchangableg" saidWiner' eIement-sshaped and m a elements "adapted to"combine and; H

v 21,332,407 I 3 ranged to produce a tapered rear compartment in e theholder, screws to fix and adjust said liner elements, a forwardcompartment in said holder, and longitudinal multi-sided liner elementsdisposed in said forward compartment adapted to abutas to their sidesand to combine one with another to produce a bore or passage way, saidmulti-sided liner elements adapted to be dealt withand turned to bringfresh wearing surfaces into' use to restore the original bore, andscrews to adjust and fix said multi-sided liner elements in operableposition in the forward part of the holder. V t CHARLES DAVIES 'SPENLE.

